From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61CA9C169C4 for ; Tue, 12 Feb 2019 02:59:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 368542084D for ; Tue, 12 Feb 2019 02:59:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728178AbfBLC7J (ORCPT ); Mon, 11 Feb 2019 21:59:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:56808 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727137AbfBLC7I (ORCPT ); Mon, 11 Feb 2019 21:59:08 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BCCB719CF29; Tue, 12 Feb 2019 02:59:07 +0000 (UTC) Received: from xz-x1.nay.redhat.com (dhcp-14-116.nay.redhat.com [10.66.14.116]) by smtp.corp.redhat.com (Postfix) with ESMTP id E0969600C6; Tue, 12 Feb 2019 02:59:01 +0000 (UTC) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: David Hildenbrand , Hugh Dickins , Maya Gokhale , Jerome Glisse , Pavel Emelyanov , Johannes Weiner , peterx@redhat.com, Martin Cracauer , Shaohua Li , Marty McFadden , Andrea Arcangeli , Mike Kravetz , Denis Plotnikov , Mike Rapoport , Mel Gorman , "Kirill A . Shutemov" , "Dr . David Alan Gilbert" Subject: [PATCH v2 13/26] mm: export wp_page_copy() Date: Tue, 12 Feb 2019 10:56:19 +0800 Message-Id: <20190212025632.28946-14-peterx@redhat.com> In-Reply-To: <20190212025632.28946-1-peterx@redhat.com> References: <20190212025632.28946-1-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Tue, 12 Feb 2019 02:59:07 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Export this function for usages outside page fault handlers. Signed-off-by: Peter Xu --- include/linux/mm.h | 2 ++ mm/memory.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index f38fbe9c8bc9..2fd14a62324b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -405,6 +405,8 @@ struct vm_fault { */ }; +vm_fault_t wp_page_copy(struct vm_fault *vmf); + /* page entry size for vm->huge_fault() */ enum page_entry_size { PE_SIZE_PTE = 0, diff --git a/mm/memory.c b/mm/memory.c index f8d83ae16eff..32d32b6e6339 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2239,7 +2239,7 @@ static inline void wp_page_reuse(struct vm_fault *vmf) * held to the old page, as well as updating the rmap. * - In any case, unlock the PTL and drop the reference we took to the old page. */ -static vm_fault_t wp_page_copy(struct vm_fault *vmf) +vm_fault_t wp_page_copy(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct mm_struct *mm = vma->vm_mm; -- 2.17.1